Mass rapid transit (MRT) is an efficient transportation mode that is urgently needed by a growing city such as Jakarta, Indonesia. However, limited research has attempted to evaluate the system's current performance through a comprehensive, unit-based calculation of the costs of MRT operation and maintenance.is research aimed to develop a system for calculating and comparing MRT operation and maintenance costs per kilometer per year. e cost model has three components, namely, capital, operation cost, and maintenance cost, which are, respectively, calculated based on their percentage toward total cost. e cost model calculation determined that Jakarta MRT operation and maintenance costs total USD 8.44 million per kilometer per year.is result was compared to other countries' MRT operations.